1994 Volume 45 Issue 1 Pages 147-150
A suitable effect was seen in 13 cases (65%), and a slight effect was seen in 4 cases (20%). In 3 cases (15%), Rikko-san proved to be ineffective.
Mild pain after tooth extraction became no pain. In 5 cases of moderate pain after tooth extraction, 4 cases were reduced to mild pain, but in 1 case there was no pain relief. There was no reduction in severe pain after tooth extraction. No subjective side-effects were observed.
Although Rikko-san may be effective for mild pain after easy tooth extraction, it appears not to be sufficiently effective in cases of moderate or sever pain after difficult tooth extraction.